Йоэль 2:12 Каббала: Sha'arei Orah

Now, although there is a difference and distinction in the matter of tears-Dim’ah-דמעה between a time when the Holy Temple is standing and the time of its destruction, nevertheless, the Gates of Tears-Shaarei Dim’ah-שערי דמעה are always opened. This has already been stated by the prophet,³⁴⁶Joel 2:12 “Return to Me with all your heart, with fasting, with weeping, and with lamentation.” Therefore, if a person wants his prayer be accepted, he should concentrate on the intention of his prayer and pour out tears. His prayer will then not return empty-handed.